package com.zzh.util;


import org.apache.commons.lang3.StringUtils;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

import java.util.Date;

/**
 * Created by lenovo on 2018/6/27.
 */
public class DateTimeUtil {

    //joda-time

    //str->Date
    //Date->str

    public  static final  String STANDARD_FORMAT = "yyyy-MM-dd HH:mm:ss";

    public static Date strToDate(String dateTimeStr,String formStr){
        DateTimeFormatter dateTimeFormatter= DateTimeFormat.forPattern(formStr);
        DateTime dateTime=dateTimeFormatter.parseDateTime(dateTimeStr);
        return dateTime.toDate();
    }

    public static  String dateToStr(Date date,String formatStr){
        if (date==null){
            return StringUtils.EMPTY;
        }
        DateTime dateTime=new DateTime(date);
        return dateTime.toString();
    }

    public static Date strToDate(String dateTimeStr){
        DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern(STANDARD_FORMAT);
        DateTime dateTime = dateTimeFormatter.parseDateTime(dateTimeStr);
        return dateTime.toDate();
    }

    public static String dateToStr(Date date){
        if(date == null){
            return StringUtils.EMPTY;
        }
        DateTime dateTime = new DateTime(date);
        return dateTime.toString(STANDARD_FORMAT);
    }

    public static void main(String[] args) {
        System.out.println(DateTimeUtil.dateToStr(new Date(),"yyyy-MM-dd HH:mm:ss"));
        System.out.println(DateTimeUtil.strToDate("2010-01-01 11:11:11","yyyy-MM-dd HH:mm:ss"));

    }
}
